The number of VLP seismic events (standard values 5-12) is medium, 10.8 events/hour.

The amplitude of seismic tremor is high.

The infrasonic activity is very high. The acoustic pressure of explosions is high, 2.2 bar (standard values <1 bar). The amplitude of puffing is high, ~180 mbar.

Tiltmeters analysis does not show any significant deformation of the volcano edifice

Thermal activity of explosive events is low. The number of thermal transients in the NE sector of the crater (standard = 100) is low, 40. The amplitude of thermal transients is low, 10 ºF. Exit velocity of pyroclasts, estimated through thermal camera analysis, is low, 15 m/s.

MODIS thermal anomalies are medium: 17 MW (01:45 UTC yesterday).

Rockfall activity is low. The number of rockfalls is 4 per day.

SO₂ flux in the NE sector of the crater terrace is medium, 106 t/d

CO₂ flux based on the C/S is not available

Indice di Attività Vulcanica: high

• Seismic (VLP) rate MEDIUM
• Seismic tremor HIGH
• Puffing HIGH
• Acustic pression of explosions HIGH
• Thermal activity LOW
• SO₂ flux MEDIUM
• CO₂ flux not available
• Rockfall activity LOW

In the last 24h, the volcanic activity is characterised by Strombolian explosions and puffing located at the NE crater sector. Degassing and spattering activity, localized at NE crater, shows VERY HIGH values (>150 mbar) and the pressure of the explosions is VERY HIGH (>2.0 bar). The volcanic tremor is HIGH. The number of VLP events is MEDIUM (10.8 events/hour). MODIS and VIIRS satellite images show MEDIUM thermal anomalies. SO2 flux is MEDIUM while CO2 flux is not available. The rockfall activity is LOW (4 events detected in the last 24h, with MEDIUM seismic pseudo-volumes involved). The volcanic activity index is HIGH.